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EATON SHAREHOLDERS' EQUITY - Calculation of Net Income per Ordinary Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Calculation of net income per ordinary share attributable to ordinary shareholders        
Net income attributable to Eaton ordinary shareholders $ 1,009 $ 891 $ 2,823 $ 2,273
Weighted-average number of ordinary shares outstanding - diluted (in shares) 398.9 401.6 400.6 400.9
Less: dilutive effect of equity-based compensation (in shares) 1.8 2.2 1.9 1.9
Weighted-average number of ordinary shares outstanding - basic (in shares) 397.1 399.4 398.7 399.0
Net income per share attributable to Eaton ordinary shareholders        
Diluted (USD per share) $ 2.53 $ 2.22 $ 7.05 $ 5.67
Basic (USD per share) $ 2.54 $ 2.23 $ 7.08 $ 5.70